/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-simple/sll2c_append_equal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 05:08:20,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 05:08:20,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 05:08:20,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 05:08:20,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 05:08:20,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 05:08:20,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 05:08:20,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 05:08:20,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 05:08:20,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 05:08:20,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 05:08:20,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 05:08:20,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 05:08:20,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 05:08:20,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 05:08:20,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 05:08:20,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 05:08:20,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 05:08:20,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 05:08:20,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 05:08:20,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 05:08:20,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 05:08:20,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 05:08:20,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 05:08:20,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 05:08:20,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 05:08:20,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 05:08:20,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 05:08:20,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 05:08:20,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 05:08:20,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 05:08:20,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 05:08:20,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 05:08:20,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 05:08:20,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 05:08:20,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 05:08:20,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 05:08:20,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 05:08:20,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 05:08:20,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 05:08:20,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 05:08:20,413 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 05:08:20,436 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 05:08:20,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 05:08:20,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 05:08:20,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 05:08:20,438 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 05:08:20,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 05:08:20,439 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 05:08:20,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 05:08:20,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 05:08:20,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 05:08:20,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 05:08:20,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 05:08:20,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 05:08:20,440 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 05:08:20,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 05:08:20,441 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 05:08:20,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 05:08:20,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 05:08:20,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 05:08:20,441 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 05:08:20,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 05:08:20,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:08:20,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 05:08:20,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 05:08:20,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 05:08:20,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 05:08:20,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 05:08:20,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 05:08:20,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 05:08:20,443 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 05:08:20,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 05:08:20,787 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 05:08:20,791 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 05:08:20,792 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 05:08:20,793 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 05:08:20,793 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2c_append_equal.i [2020-10-14 05:08:20,853 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/264271b09/ad7e166f8d09480da9645cc89704cd9e/FLAGbc84f1453 [2020-10-14 05:08:21,406 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 05:08:21,407 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-simple/sll2c_append_equal.i [2020-10-14 05:08:21,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/264271b09/ad7e166f8d09480da9645cc89704cd9e/FLAGbc84f1453 [2020-10-14 05:08:21,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/264271b09/ad7e166f8d09480da9645cc89704cd9e [2020-10-14 05:08:21,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 05:08:21,680 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 05:08:21,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 05:08:21,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 05:08:21,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 05:08:21,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:08:21" (1/1) ... [2020-10-14 05:08:21,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69889533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:21, skipping insertion in model container [2020-10-14 05:08:21,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:08:21" (1/1) ... [2020-10-14 05:08:21,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 05:08:21,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 05:08:22,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:08:22,185 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 05:08:22,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:08:22,320 INFO L208 MainTranslator]: Completed translation [2020-10-14 05:08:22,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:22 WrapperNode [2020-10-14 05:08:22,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 05:08:22,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 05:08:22,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 05:08:22,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 05:08:22,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:22" (1/1) ... [2020-10-14 05:08:22,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:22" (1/1) ... [2020-10-14 05:08:22,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:22" (1/1) ... [2020-10-14 05:08:22,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:22" (1/1) ... [2020-10-14 05:08:22,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:22" (1/1) ... [2020-10-14 05:08:22,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:22" (1/1) ... [2020-10-14 05:08:22,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:22" (1/1) ... [2020-10-14 05:08:22,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 05:08:22,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 05:08:22,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 05:08:22,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 05:08:22,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:08:22,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 05:08:22,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 05:08:22,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-14 05:08:22,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-14 05:08:22,461 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-10-14 05:08:22,462 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2020-10-14 05:08:22,462 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2020-10-14 05:08:22,462 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_destroy [2020-10-14 05:08:22,462 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_append [2020-10-14 05:08:22,462 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 05:08:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 05:08:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-14 05:08:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-14 05:08:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-14 05:08:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-14 05:08:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-14 05:08:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-14 05:08:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-14 05:08:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-14 05:08:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-14 05:08:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-14 05:08:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-14 05:08:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-14 05:08:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-14 05:08:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-14 05:08:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-14 05:08:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-14 05:08:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-14 05:08:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-14 05:08:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-14 05:08:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-14 05:08:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-14 05:08:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-14 05:08:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-14 05:08:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-14 05:08:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-14 05:08:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-14 05:08:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-14 05:08:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-14 05:08:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-14 05:08:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-14 05:08:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-14 05:08:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-14 05:08:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-14 05:08:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-14 05:08:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-14 05:08:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-14 05:08:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-14 05:08:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-14 05:08:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-14 05:08:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-14 05:08:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-14 05:08:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-14 05:08:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-14 05:08:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-14 05:08:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-14 05:08:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-14 05:08:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-14 05:08:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-14 05:08:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-14 05:08:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-14 05:08:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-14 05:08:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-14 05:08:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 05:08:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 05:08:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-14 05:08:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 05:08:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-14 05:08:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-14 05:08:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-14 05:08:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-14 05:08:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-14 05:08:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 05:08:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-14 05:08:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-14 05:08:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-14 05:08:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 05:08:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-14 05:08:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-14 05:08:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-14 05:08:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-14 05:08:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-14 05:08:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-14 05:08:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-14 05:08:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-14 05:08:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-14 05:08:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-14 05:08:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-14 05:08:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-14 05:08:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-14 05:08:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-14 05:08:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-14 05:08:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-14 05:08:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-14 05:08:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-14 05:08:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-14 05:08:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-14 05:08:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-14 05:08:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-14 05:08:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-14 05:08:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-14 05:08:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-14 05:08:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-14 05:08:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-14 05:08:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-14 05:08:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-14 05:08:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-14 05:08:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-14 05:08:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-14 05:08:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-14 05:08:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-14 05:08:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-14 05:08:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-14 05:08:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-14 05:08:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-14 05:08:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-14 05:08:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-10-14 05:08:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2020-10-14 05:08:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 05:08:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 05:08:22,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 05:08:22,480 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2020-10-14 05:08:22,480 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_destroy [2020-10-14 05:08:22,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 05:08:22,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 05:08:22,480 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_append [2020-10-14 05:08:22,481 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 05:08:22,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 05:08:22,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 05:08:22,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 05:08:22,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 05:08:22,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 05:08:22,855 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-10-14 05:08:23,173 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 05:08:23,174 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-14 05:08:23,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:08:23 BoogieIcfgContainer [2020-10-14 05:08:23,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 05:08:23,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 05:08:23,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 05:08:23,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 05:08:23,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:08:21" (1/3) ... [2020-10-14 05:08:23,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f07b768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:08:23, skipping insertion in model container [2020-10-14 05:08:23,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:22" (2/3) ... [2020-10-14 05:08:23,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f07b768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:08:23, skipping insertion in model container [2020-10-14 05:08:23,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:08:23" (3/3) ... [2020-10-14 05:08:23,187 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2c_append_equal.i [2020-10-14 05:08:23,198 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 05:08:23,207 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 05:08:23,221 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 05:08:23,245 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 05:08:23,245 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 05:08:23,245 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 05:08:23,246 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 05:08:23,246 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 05:08:23,246 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 05:08:23,246 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 05:08:23,246 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 05:08:23,269 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-10-14 05:08:23,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-14 05:08:23,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:08:23,278 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:08:23,279 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:08:23,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:08:23,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1841107940, now seen corresponding path program 1 times [2020-10-14 05:08:23,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:08:23,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [806291555] [2020-10-14 05:08:23,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:08:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:08:23,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:23,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:23,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:24,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:26,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:08:26,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 05:08:26,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 05:08:26,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2647 [2020-10-14 05:08:26,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:08:26,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:08:26,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:08:26,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-14 05:08:26,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:08:26,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 05:08:26,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:08:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:08:26,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:26,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:08:26,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:08:26,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:08:26,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:08:26,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:08:26,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:08:26,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:08:26,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:08:26,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:08:26,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:08:26,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:08:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:08:26,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:26,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:26,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:08:26,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 05:08:26,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:08:26,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 05:08:26,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:08:26,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:08:26,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:08:26,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:08:26,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:08:26,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:08:26,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:08:26,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:08:26,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:26,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:08:26,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:08:26,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:08:26,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 05:08:26,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:08:26,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:08:26,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:08:26,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:08:26,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:08:26,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:08:26,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 05:08:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:08:26,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:26,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:08:26,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 05:08:26,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:08:26,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 05:08:26,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:08:26,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:08:26,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:08:26,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:08:26,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:08:26,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:08:26,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:08:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:08:26,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:26,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:08:26,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:08:26,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:08:26,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 05:08:26,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:08:26,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:08:26,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:08:26,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:08:26,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:08:26,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:08:26,265 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 05:08:26,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [806291555] [2020-10-14 05:08:26,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:08:26,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 05:08:26,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058134405] [2020-10-14 05:08:26,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 05:08:26,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:08:26,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 05:08:26,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:08:26,295 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 4 states. [2020-10-14 05:08:26,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:08:26,534 INFO L93 Difference]: Finished difference Result 101 states and 129 transitions. [2020-10-14 05:08:26,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 05:08:26,537 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-10-14 05:08:26,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:08:26,548 INFO L225 Difference]: With dead ends: 101 [2020-10-14 05:08:26,549 INFO L226 Difference]: Without dead ends: 40 [2020-10-14 05:08:26,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:08:26,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-14 05:08:26,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-14 05:08:26,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-14 05:08:26,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2020-10-14 05:08:26,609 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 36 [2020-10-14 05:08:26,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:08:26,611 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2020-10-14 05:08:26,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 05:08:26,612 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2020-10-14 05:08:26,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-14 05:08:26,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:08:26,614 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:08:26,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 05:08:26,615 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:08:26,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:08:26,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1185739959, now seen corresponding path program 1 times [2020-10-14 05:08:26,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:08:26,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [999085527] [2020-10-14 05:08:26,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:08:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:08:26,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:26,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:27,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:28,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:31,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:08:31,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 05:08:31,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 05:08:31,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 05:08:31,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:08:31,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:08:31,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:08:31,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:08:31,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 05:08:31,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:08:31,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:08:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:08:31,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:31,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:08:31,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:08:31,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:08:31,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:08:31,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:08:31,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:08:31,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:08:31,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:08:31,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:08:31,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:08:31,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:08:31,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:08:31,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:31,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:08:31,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 05:08:31,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:08:31,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 05:08:31,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:08:31,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:08:31,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:08:31,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 05:08:31,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 05:08:31,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:08:31,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:08:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:08:31,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:31,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:08:31,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:08:31,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:08:31,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 05:08:31,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:08:31,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:08:31,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:08:31,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:08:31,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:08:31,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:08:31,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 05:08:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:08:31,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:31,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:08:31,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 05:08:31,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:08:31,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 05:08:31,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:08:31,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:08:31,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:08:31,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 05:08:31,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:08:31,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:08:31,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:08:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:08:31,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:31,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:08:31,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:08:31,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:08:31,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 05:08:31,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:08:31,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:08:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:08:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:08:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:08:31,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:08:31,885 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 05:08:31,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [999085527] [2020-10-14 05:08:31,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:08:31,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 05:08:31,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544259228] [2020-10-14 05:08:31,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 05:08:31,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:08:31,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 05:08:31,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:08:31,891 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 7 states. [2020-10-14 05:08:32,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:08:32,139 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2020-10-14 05:08:32,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 05:08:32,140 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-10-14 05:08:32,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:08:32,142 INFO L225 Difference]: With dead ends: 70 [2020-10-14 05:08:32,142 INFO L226 Difference]: Without dead ends: 43 [2020-10-14 05:08:32,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-14 05:08:32,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-14 05:08:32,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2020-10-14 05:08:32,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-14 05:08:32,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2020-10-14 05:08:32,167 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 36 [2020-10-14 05:08:32,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:08:32,167 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2020-10-14 05:08:32,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 05:08:32,168 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2020-10-14 05:08:32,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-14 05:08:32,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:08:32,169 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:08:32,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 05:08:32,170 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:08:32,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:08:32,171 INFO L82 PathProgramCache]: Analyzing trace with hash -532989777, now seen corresponding path program 1 times [2020-10-14 05:08:32,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:08:32,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [851204028] [2020-10-14 05:08:32,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:08:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:08:32,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:32,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:33,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:35,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:08:35,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 05:08:35,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:08:35,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3153 [2020-10-14 05:08:35,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:08:35,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:08:35,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 05:08:35,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:08:35,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 05:08:35,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:08:35,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:08:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:08:35,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:35,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:08:35,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:08:35,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:08:35,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:08:35,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:08:35,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:08:35,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:08:35,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:08:35,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:08:35,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:08:35,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:08:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:08:35,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:35,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:08:35,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 05:08:35,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:08:35,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 05:08:35,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:08:35,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:08:35,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:08:35,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:08:35,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 05:08:35,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:08:35,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:08:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:08:35,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:35,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:08:35,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:08:35,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:08:35,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:08:35,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:08:35,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:08:35,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:08:35,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:08:35,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:08:35,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:08:35,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:08:35,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:08:35,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:35,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:08:35,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:08:35,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:08:35,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 05:08:35,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:08:35,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:08:35,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:08:35,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:08:35,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:08:35,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:08:35,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 05:08:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:08:35,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:35,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:08:35,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 05:08:35,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:08:35,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 05:08:35,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:08:35,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:08:35,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 05:08:35,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:08:35,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 05:08:35,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:08:35,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:08:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:08:35,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:35,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:08:35,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:08:35,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:08:35,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 05:08:35,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:08:35,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:08:35,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:08:35,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:08:35,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 05:08:35,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:08:35,906 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 05:08:35,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [851204028] [2020-10-14 05:08:35,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:08:35,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-14 05:08:35,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527141659] [2020-10-14 05:08:35,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 05:08:35,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:08:35,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 05:08:35,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-14 05:08:35,909 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand 14 states. [2020-10-14 05:08:36,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:08:36,527 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2020-10-14 05:08:36,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 05:08:36,527 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 44 [2020-10-14 05:08:36,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:08:36,529 INFO L225 Difference]: With dead ends: 55 [2020-10-14 05:08:36,529 INFO L226 Difference]: Without dead ends: 53 [2020-10-14 05:08:36,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2020-10-14 05:08:36,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-14 05:08:36,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 46. [2020-10-14 05:08:36,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-14 05:08:36,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2020-10-14 05:08:36,540 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 44 [2020-10-14 05:08:36,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:08:36,540 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2020-10-14 05:08:36,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 05:08:36,540 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2020-10-14 05:08:36,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-14 05:08:36,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:08:36,542 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:08:36,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 05:08:36,542 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:08:36,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:08:36,543 INFO L82 PathProgramCache]: Analyzing trace with hash 197077925, now seen corresponding path program 1 times [2020-10-14 05:08:36,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:08:36,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [817917248] [2020-10-14 05:08:36,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:08:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:08:36,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:36,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:37,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:08:39,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:08:39,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-14 05:08:39,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:08:39,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2908 [2020-10-14 05:08:39,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:08:39,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:08:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 05:08:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:08:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 05:08:39,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:08:39,495 ERROR L253 erpolLogProxyWrapper]: Interpolant 12 not inductive [2020-10-14 05:08:39,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 05:08:39,497 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:849) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:155) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:256) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:150) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-10-14 05:08:39,507 INFO L168 Benchmark]: Toolchain (without parser) took 17824.08 ms. Allocated memory was 146.8 MB in the beginning and 532.7 MB in the end (delta: 385.9 MB). Free memory was 102.1 MB in the beginning and 488.9 MB in the end (delta: -386.8 MB). Peak memory consumption was 403.0 MB. Max. memory is 7.1 GB. [2020-10-14 05:08:39,508 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-14 05:08:39,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.39 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 101.9 MB in the beginning and 169.0 MB in the end (delta: -67.1 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-14 05:08:39,511 INFO L168 Benchmark]: Boogie Preprocessor took 68.43 ms. Allocated memory is still 203.9 MB. Free memory was 169.0 MB in the beginning and 165.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-10-14 05:08:39,513 INFO L168 Benchmark]: RCFGBuilder took 787.14 ms. Allocated memory is still 203.9 MB. Free memory was 165.7 MB in the beginning and 114.8 MB in the end (delta: 50.9 MB). Peak memory consumption was 50.9 MB. Max. memory is 7.1 GB. [2020-10-14 05:08:39,520 INFO L168 Benchmark]: TraceAbstraction took 16321.83 ms. Allocated memory was 203.9 MB in the beginning and 532.7 MB in the end (delta: 328.7 MB). Free memory was 114.2 MB in the beginning and 488.9 MB in the end (delta: -374.7 MB). Peak memory consumption was 357.9 MB. Max. memory is 7.1 GB. [2020-10-14 05:08:39,527 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 640.39 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 101.9 MB in the beginning and 169.0 MB in the end (delta: -67.1 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 68.43 ms. Allocated memory is still 203.9 MB. Free memory was 169.0 MB in the beginning and 165.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 787.14 ms. Allocated memory is still 203.9 MB. Free memory was 165.7 MB in the beginning and 114.8 MB in the end (delta: 50.9 MB). Peak memory consumption was 50.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16321.83 ms. Allocated memory was 203.9 MB in the beginning and 532.7 MB in the end (delta: 328.7 MB). Free memory was 114.2 MB in the beginning and 488.9 MB in the end (delta: -374.7 MB). Peak memory consumption was 357.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...